Just found out that Microcap which is a very powerfull simulator is now free. It looks like the owner is retiring and decided to make it free to the engineering community. This indeed is a very powerfull simulator. This simulator sold for about 5000 dollars is not in the public domain. Thank your sir for making it free to the engineering community.
News:
Effective 7/4/2019, Spectrum Software is closed. Micro-Cap is now free.
Technical support will be available for at least 90 days via email at Support.
You can download the latest versions of Micro-Cap here: Download
You can choose either the executable program or the entire installation CD for MC10, MC11, and MC12. If you have an earlier version, download and use MC12. These new versions do not require the security key, so they make Micro-Cap free to the entire engineering community.
Thank you for the honor and privilege of serving you for the last 39 years.
Spectrum Software
http://www.spectrum-soft.com/index.shtm